Control of micropore size in supermicroporous titania-chromia system TiO2-Cr2O3 Academic Article

abstract

• Sol-gel hydrolysis reactions of titanium(IV) isopropoxide and chromium (III) acetate hydroxide in the presence or absence of propanol, using the following amines as structure directing agents; N-hexylamine, N-methylhexylamine, and N-propylbutylamine, yielded microporous mixed metal oxides with the presence of pores largely in the 10-20 region, and surface areas that vary from 564 m2/g when N-hexylamine is employed as pore directing template to 494 m2/g when N-propylbutyl amine is employed as template. The maxima in pore size distribution increases with increase in steric crowding around the nitrogen in the alkyl amine. In addition, the nitrogen adsorption-desorption isotherm shifted from Type 1 isotherm when N-hexylamine is used as templating agent to Type 4 isotherm in N-propylbutylamine. 2006 Elsevier B.V. All rights reserved.

authors

• Clearfield, Abraham

published proceedings

• INORGANIC CHEMISTRY COMMUNICATIONS

author list (cited authors)

• Delouis, W., Sanchez, M., Shpeizer, B., Clearfield, A., & Oki, A.

citation count

• 5

complete list of authors

• Delouis, Windlyne||Sanchez, Marcos||Shpeizer, Boris||Clearfield, Abraham||Oki, Aderemi

publication date

• November 2006

publisher

• Elsevier  Publisher

published in

• Inorganic Chemistry Communications  Journal

keywords

• Chromia
• Hexylamine
• Pore
• Sol-gel Hydrolysis
• Titania

Digital Object Identifier (DOI)

• 10.1016/j.inoche.2006.07.031

start page

• 1136

end page

• 1140

volume

• 9

issue

• 11

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.inoche.2006.07.031